202111211202012 has 72 divisors (see below), whose sum is σ = 586203035064192. Its totient is φ = 57515996340000.

The previous prime is 202111211202001. The next prime is 202111211202023. The reversal of 202111211202012 is 210202112111202.

202111211202012 is a `hidden beast` number, since 20 + 211 + 1 + 211 + 20 + 201 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (202111211202001) and next prime (202111211202023).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1597603314 + ... + 1597729817.

It is an arithmetic number, because the mean of its divisors is an integer number (8141708820336).

Almost surely, 2^{202111211202012} is an apocalyptic number.

It is an amenable number.

202111211202012 is an abundant number, since it is smaller than the sum of its proper divisors (384091823862180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202111211202012 is a wasteful number, since it uses less digits than its factorization.

202111211202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195333399 (or 3195333394 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 202111211202012 its reverse (210202112111202), we get a palindrome (412313323313214).

The spelling of 202111211202012 in words is "two hundred two trillion, one hundred eleven billion, two hundred eleven million, two hundred two thousand, twelve".